Who Competes in the Team Event at the Olympics?- questions inside

Specifically, I'm wondering if the team members must also be competing in the Individual Men's Event, Women's event etc, or if it is possible for example, for the US to send 3 men to Sochi and use, let's say, Jeremy Abbott for the Team and Max and Jason Brown for the Men's Individual? This would be kind of great because it would give more skaters an opportunity to be Olympians, but maybe it's not possible?? Additionally, if only 2 US men go, does the 1 who competes for the Team have to be the higher ranked US man (ie our National Champion) or is the US free to name the #2 man as their Team competitor?